Malachi 2:14; Ecclesiastes 5:4-5
But you say, "Why does he not?" Because the LORD was witness between you and the wife of your youth, to whom you have been faithless, though she is your companion and your wife by covenant.
When you vow a vow to God, do not delay paying it, for he has no pleasure in fools. Pay what you vow.
It is better that you should not vow than that you should vow and not pay.